NPPB and chronic kidney disease: Patients in the LBBAP group had a higher baseline BNP than those in the BIVP group (851.65 ± 376.94 vs. 682.80 ± 821.39 pg/ml, p = 0.041), but a lower incidence of chronic renal insufficiency (9.52% vs. 45.00%, p = 0.010).